    * {
      margin: 0;
      padding: 0;
    }

    body {
      position: absolute;
    }

    #container {
      overflow: hidden;
      position: relative;
    }
    
    .swiper {
      display: flex;
    }

    .swiper-item {
      width: 100%;
      flex-shrink: 0;
    }

    .swiper-item img {
      display: block;
      width: 100%;
    }

    .pre {
      position: absolute;
      left: 0;
      top: 50%;
      margin-top: -15px;
      width: 30px;
      height: 30px;
      color: black;
      text-align: center;
      line-height: 30px;
    }

    .next {
      position: absolute;
      right: 0;
      top: 50%;
      margin-top: -15px;
      width: 30px;
      height: 30px;
      color: black;
      text-align: center;
      line-height: 30px;
    }

    .indicator {
      position: absolute;
      bottom: 8px;
      width: 100%;
      height: 16px;
      display: flex;
      justify-content: center;
    }

    .indicator-item {
      box-sizing: border-box;
      margin: 3px;
      width: 12px;
      height: 12px;
      border-radius: 6px;
      border: 1px solid red;
      background-color: white;
    }

    .indicator-item-active {
      box-sizing: border-box;
      margin: 3px;
      width: 12px;
      height: 12px;
      border-radius: 6px;
      border: 1px solid white;
      background-color: red;
    }